I have had a ANA of about 1:80 for years- the only other symptom I have is mild joint pain in my knees, and shoulders (only). I am a white male 42 years. My ESR has always been normal as has been my other blood test (albumin etc). What could cause a ANA that high and joint pain? I have never had an unexplained fever either.
The ANA titer of 1:80 is very low and likely is not significant unless you had more specific symptoms of lupus. You should review your symptoms with your doctor/rheumatologist.